26
FAULT DIAGNOSIS BY REMOTE CONTROLLER
IN THE EVENT OF AN ABNORMALITY, THE RELEVANT ABNORMALITY CODE APPEARS FLASHING
IN THE REMOTE CONTROLLER’S TEMPERATURE DISPLAY.
Fault diagnosis
CODE MEANING
SYSTEM
00 NORMAL
U0 REFRIGERANT SHORTAGE
U4 FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)
U2 DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE
INDOOR UNIT
A1 INDOOR PCB DEFECTIVENESS
A5 HIGH PRESSURE CONTROL OR FREEZE-UP PROTECTOR
A6 FAN M OTOR FAULT
C4 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
C9 FAULTY SUCTION AIR TEMPERATURE SENSOR
OUTDOOR
UNIT
EA COOLING-HEATING SWITCHING ERROR
E5 OL STARTED
E6 FAULTY COMPRESSOR START UP
E8 OPERATION HALT DUE TO DETECTION OF INPUT OVER CURRENT
F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL
H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR
H8 CT ABNORMALITY
H9 FAULTY SUCTION AIR TEMPERATURE SENSOR
J3 FAULTY DISCHARGE PIPE TEMPERATURE SENSOR
J6 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
L4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
L5 OUTPUT OVERCURRENT
P4 FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSOR
3P098574-3_Eng_1.book Page 26 Wednesday, October 16, 2002 2:51 PM
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